Crash on texture painting with invalid material indices attribute #103198

New Issue

Dawid · 2022-12-14T00:10:01+01:00

Dawid commented

2022-12-14 00:10:01 +01:00

System Information
Operating system: Windows 11
Graphics card: RTX 3060

Blender Version
Broken: 3.4.0, a95bf1ac01, 2022-12-06

Short description of error
while in texture painting mode. when I click to paint, blender crushes.
Exact steps for others to reproduce the error

Open attached file
Switch to texture paint mode
Paint on selected mesh (retry if crash doesn't happen)

untitled.blend
recordedVideo.mp4

**System Information** Operating system: Windows 11 Graphics card: RTX 3060 **Blender Version** Broken: 3.4.0, a95bf1ac01be, 2022-12-06 **Short description of error** while in texture painting mode. when I click to paint, blender crushes. **Exact steps for others to reproduce the error** - Open attached file - Switch to texture paint mode - Paint on selected mesh (retry if crash doesn't happen) [untitled.blend](https://archive.blender.org/developer/F14056293/untitled.blend) [recordedVideo.mp4](https://archive.blender.org/developer/F14056303/recordedVideo.mp4)

Dawid commented

2022-12-14 00:10:01 +01:00

Added subscriber: @Sauder

blender-admin commented

2022-12-14 00:10:01 +01:00

#104224 was marked as duplicate of this issue

blender-admin commented

2022-12-14 00:10:01 +01:00

#104228 was marked as duplicate of this issue

blender-admin commented

2022-12-14 00:10:01 +01:00

#103745 was marked as duplicate of this issue

Pratik Borhade changed title from ~~texture painting bug~~ to Crash on texture painting

2022-12-14 10:27:56 +01:00

Pratik Borhade commented

2022-12-14 10:33:43 +01:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2022-12-14 10:33:43 +01:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Pratik Borhade commented

2022-12-14 10:33:43 +01:00

Hi, thanks for the report. I can repro the crash in uploaded file. Though I'm not able to recreate such situation from scratch.
Do you remember how exactly you created the model. Did you import it from other software?

Hi, thanks for the report. I can repro the crash in uploaded file. Though I'm not able to recreate such situation from scratch. Do you remember how exactly you created the model. Did you import it from other software?

Dawid commented

2022-12-14 19:50:29 +01:00

I added 2 cubes and merged it with boolean modifier, after it I added cylinder and merged it with boolean. I also added bevel using HardOps, and weighted normal modifier. It was created in blender, not in other software.

It also happend in my other projects, it seems to happening after boolean modifier. Every time I merge for example: cube with cylinder or sphere and try to texture paint it happens.

I added 2 cubes and merged it with boolean modifier, after it I added cylinder and merged it with boolean. I also added bevel using HardOps, and weighted normal modifier. It was created in blender, not in other software. It also happend in my other projects, it seems to happening after boolean modifier. Every time I merge for example: cube with cylinder or sphere and try to texture paint it happens.

Pratik Borhade commented

2022-12-15 06:14:28 +01:00

Changed status from 'Needs User Info' to: 'Confirmed'

Philipp Oeser commented

2022-12-16 10:01:49 +01:00

Added subscribers: @HooglyBoogly, @JosephEagar, @lichtwerk

Philipp Oeser commented

2022-12-16 10:01:49 +01:00

There are faces with non-existing material indices

{F14061981 size=full}

If the attribute is removed, there is no crash.
You could also call C.active_object.data.validate_material_indices() https://docs.blender.org/api/3.5/bpy.types.Mesh.html#bpy.types.Mesh.validate_material_indices

@HooglyBoogly @JosephEagar : I recall similar cases, wasnt there a related fix already?

There are faces with non-existing material indices {[F14061981](https://archive.blender.org/developer/F14061981/image.png) size=full} If the attribute is removed, there is no crash. You could also call `C.active_object.data.validate_material_indices()` https://docs.blender.org/api/3.5/bpy.types.Mesh.html#bpy.types.Mesh.validate_material_indices @HooglyBoogly @JosephEagar : I recall similar cases, wasnt there a related fix already?

Philipp Oeser changed title from ~~Crash on texture painting~~ to Crash on texture painting with invalid material indices attribute

2022-12-16 10:02:22 +01:00

blender-admin commented

2022-12-18 16:08:57 +01:00

This issue was referenced by 0beb358a69

This issue was referenced by 0beb358a69d0c9c5436995c2945eadbae95e8965

Joseph Eagar commented

2022-12-18 16:11:12 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Joseph Eagar closed this issue

2022-12-18 16:11:12 +01:00

Joseph Eagar self-assigned this 2022-12-18 16:11:12 +01:00